Valve released an update to Proton Experimental for Linux and Steam Deck today which continues to expand the controller support available for various games launchers, amongst a bunch of other improvements.
Continuing to make use of the open source tool Xalia, the controller support was expanded to include launchers for Tomb Raider: Legend, Tomb Raider: Anniversary, Fallout 4, The Elder Scrolls V: Skyrim Special Edition, and partial support of Fallout 3 (standard and GOTY edition).
Interesting to see Fallout 4 in that list, which had the launcher hidden in the next gen update recently on Steam Deck. Although you can get it back with a simple Steam launch option of: SteamDeck=0 %command%
Other improvements include:
- Fixed Apex Legends not starting after a recent game update (previously in Proton Hotfix).
- Fix The Finals wrongly detecting button mashing (previously in Proton Hotfix).
- Added raw HID support for VKB Gunfighter SCG.
- Improved font rendering in Alien Swarm: Reactive Drop.
- Fixed video playback in Twisted Sails.
- Made Xalia hidden when no controller is plugged in.
- Improved controller input support for Tower Princess.
Valve also marked Alpha League as now playable as of this update. See all in the changelog.





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